论文标题
从Cdmslite轻轻电离颗粒的限制
Constraints on Lightly Ionizing Particles from CDMSlite
论文作者
论文摘要
低温暗物质搜索低电离阈值实验(CDMSLITE)可有效检测其在锗靶标中非常小的后坐力能量,从而在先前未开发的电荷,质量和速度参数空间中对轻度电离颗粒(LIPS)的敏感性。我们报告了使用最佳间隔方法计算出的第一个直接检测极限,该限制在宇宙生产的嘴唇的垂直强度上,电荷小于$ e/(3 \ times10^5 $),以及电荷$ \ leq e/160 $的最大限制,最小的垂直强度的垂直强度为$ 1.36 \ times10^{ - 7} $ \,cm $^{ - 2} $ s $^{ - 1} $ sr $^{ - 1} $ at Charge $ e/160 $。这些结果适用于广泛的唇部质量(5 \,Mev/$ C^2 $至100 \,TEV/$ C^2 $),并覆盖了$βγ$值(0.1- $ 10^6 $)的广泛范围,因此首次不包括非相关性的lips $βγ$。
The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) achieved efficient detection of very small recoil energies in its germanium target, resulting in sensitivity to Lightly Ionizing Particles (LIPs) in a previously unexplored region of charge, mass, and velocity parameter space. We report first direct-detection limits calculated using the optimum interval method on the vertical intensity of cosmogenically-produced LIPs with an electric charge smaller than $e/(3\times10^5$), as well as the strongest limits for charge $\leq e/160$, with a minimum vertical intensity of $1.36\times10^{-7}$\,cm$^{-2}$s$^{-1}$sr$^{-1}$ at charge $e/160$. These results apply over a wide range of LIP masses (5\,MeV/$c^2$ to 100\,TeV/$c^2$) and cover a wide range of $βγ$ values (0.1 -- $10^6$), thus excluding non-relativistic LIPs with $βγ$ as small as 0.1 for the first time.